JP4363726B2 - Hook mounting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hook mounting device suitable for use in, for example, an elevator installation work in a hoistway in an elevator installation work in a building.
[0002]
[Prior art]
The main parts of the elevator, such as a passenger car and a guide rail, are installed in a hoistway provided through a plurality of floors in the building. The elevator installation work needs to be performed by moving up and down in a hoistway without a special scaffold, so that the worker gets into the gondola suspended from the ceiling in the hoistway.
[0003]
In order for the gondola to move up and down in the hoistway, for example, a rope winder is mounted on the frame of the gondola, and the gondola rope is wound or unwound by the winder Is done. In order to suspend the work rope such as the gondola rope and the lifeline from the hoistway ceiling wall, conventionally, the gondola rope 2 and the auxiliary rope 3 are connected to the hook 4 as shown in FIG. 4 is locked to a U-shaped fixing bracket 5a embedded in the approximate center of the ceiling wall 5 in advance.
[0004]
Therefore, in order to lock the heavy hook 4 to the fixing bracket 5a in the hoistway, the worker must first assemble the scaffold 6 in the hoistway. The assembly work of the scaffold 6 was required.
[0005]
Thus, conventionally, in the installation work of the elevator, prior to the actual assembly work, the assembly of the scaffolding, the dismantling and the unloading, etc. were performed in order to install the working gondola.
[0006]
When the elevator installation work is completed and the used gondola rope 2 and auxiliary rope 3 are collected, an operator rides on the car and removes the hook 4 from the fixing bracket 5a and collects it. be able to.
[0007]
[Problems to be solved by the invention]
As described above, when the elevator is installed, it is necessary to assemble the scaffolding in the hoistway in order to lock the hook connecting the gondola rope and the auxiliary rope to the fixing bracket 5a. Since the work itself is performed on the assembled scaffold, there has been a demand for improvement in terms of ensuring work safety and improving the efficiency of elevator installation work.
[0008]
[Means for Solving the Problems]
The present invention has been made to solve the above-described conventional problems, and the invention according to claim 1 is a U-shaped cross section in which an opening is provided above and a hook to which a rope or the like is connected is accommodated and held. A hook-shaped hook holding member and a rod-shaped gripping member provided with one end fixed to the hook holding member and extending downward from the bottom. The hook holding member has one end locked to the hook. It is characterized in that it is inserted along the above-mentioned holding member through the above-mentioned locking string .
[0009]
Thus, since the hook attaching device according to claim 1 has the hook holding member having a U-shaped cross section and the rod-like gripping member, the worker can use the gripping member without using the scaffold in the special hoistway. It has a lower part, and the hook housed in the hook holding member can be locked to the fixing bracket provided on the ceiling wall by remote control from the elevator hall on the top floor , and the hook holding member has one end Is inserted along the gripping member and hooked along the gripping member, so that the worker accidentally falls into the hoistway by securing the other end of the locking cord. Can be avoided .
[0010]
According to a second aspect of the present invention, in the hook mounting device according to the first aspect, the hook holding member includes a width adjusting mechanism configured to be adjustable in a U-shaped cross section.
[0011]
Thus, in the invention according to claim 2, since the width adjusting mechanism is provided in the hook holding member, the U-shaped width can be adjusted appropriately in accordance with the variation in the width of the hook, It is possible to reduce a problem that the hook is displaced from the holding member during the operation.
[0012]
According to a third aspect of the present invention, in the hook attaching device according to the first or second aspect of the present invention, the hook holding member has a non-slip portion formed on the inner side surface of the U-shaped cross section.
[0013]
Thus, according to the invention according to claim 3, by forming the anti-slip portion on the inner side surface of the hook holding member, the holding force of the hook can be increased and the hook can be prevented from slipping down. Similar to the operation of the invention or in addition to the operation of the invention of claim 2, the worker can more securely attach the hook to the ceiling wall.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a hook attaching device according to the present invention will be described in detail with reference to FIGS. The same components as those in the conventional configuration shown in FIG. 6 are denoted by the same reference numerals, and detailed description thereof is omitted.
[0019]
1 is a perspective view showing an embodiment of a hook attaching device according to the present invention, FIG. 2 is an enlarged plan view of FIG. 1, and FIG. 3 is an attempt to store and hold the hook by the hook attaching device shown in FIG. It is the perspective view which showed the state to do.
[0020]
That is, as shown in FIGS. 1 to 3, the hook attachment device 7 includes a hook holding member 71 having a U-shaped cross section formed with an opening 711 on the upper side so as to receive, hold and hold the hook 4. One end of the hook holding member 71 is fixed, and the hook holding member 71 includes a rod-shaped gripping member 72 that extends downward from the bottom 712 thereof.
[0021]
In order for the hook holding member 71 to store and hold the hook 4, the U-shaped opening width d is slightly narrower than the outer width of the hook 4. The U-shaped portion is provided with a width adjusting mechanism 713 composed of a combination of a screw rod 713a and a nut 713b so that the opening width d can be appropriately adjusted according to variations and an appropriate holding force can be secured.
[0022]
In addition, a sheet-like non-slip member 714 such as a rubber member is attached to the inside of the opposite side surfaces of the U-shaped hook holding member 71, and the hook 4 stored by the worker is raised and lowered. The hook 4 is configured not to slide down from the hook holding member 71 when it is lifted upward so as to be locked to the fixing bracket 5 a attached to the road ceiling wall 5. In this embodiment, the anti-slip member 714 is affixed to the opposite side surface of the hook holding member 71. However, the inner side surface of the hook holding member 71 is processed to be uneven in place of the anti-slip member 714, and a large frictional force is obtained. The holding force of the hook 4 may be increased.
[0023]
Furthermore, as shown in FIG. 2, the bottom portion 712 of the hook holding member 71 is provided with a through hole 715, and as shown in FIG. The other end is passed through the through-hole 715 so that the worker can hold it, and even if the hook 4 slides down from the hook holding member 71, the heavy weight of the gondola rope 2 and the hook 4 are removed from the hook holding member 71. It is possible to prevent slipping and falling into the pit of the hoistway. However, the locking string 41 itself does not fall off because the hook 4 is held by the hook holding member 71, and even if it is slipped off, it does not necessarily fall into the hoistway. For example, a ring-shaped metal fitting may be fixed to the hook holding member 71 and passed therethrough.
[0024]
Next, in this embodiment, the rod-shaped gripping member 72 fixedly provided on the bottom portion 712 of the holding member 71 is connected to the through hole 715 and passes the locking string 41 therethrough as shown in FIG. It is comprised from the cylinder 721 and the elongate holding rod 723 fixed to this cylinder 721 via the connection member 722. As shown in FIG.
[0025]
The long gripping rod 723 is not shown in the drawing so that the worker can appropriately change the length of the hook 4 to be easily attached, but a shaft coupling using a key as seen on a handle such as an umbrella, for example. It is possible to adopt a mechanism that can adjust the length at an arbitrary position by rotating a length adjustment mechanism that employs, or by rotating a single ridge composed of two ridges as seen in a stretchable laundry basket .
[0026]
A procedure for an operator to hang the hook 4 on the fixing bracket 5a of the ceiling wall 5 using the hook mounting device having the above-described configuration will be described with reference to FIGS.
[0027]
That is, as shown in FIG. 3, the worker ensures that the locking string 41 is pulled to the operator's hand through the through-hole 715 of the hook holding member 71 and the cylinder 721 of the gripping member 72, and the hook 4 is moved to the arrow. Pushing in the A direction, the hook holding member 71 is engaged as shown in FIG. At this time, the hook 4 is attached to the hook holding member 71 so that the movable locking piece 42 faces the fixed fitting 5a.
[0028]
Therefore, the operator, on the one hand, secures the locking string 41, lifts the gripping member 72, and pushes it out as shown by the arrow B in FIG. 4, so that the hook 4 is fitted into the U-shaped fixing bracket 5a and locked. Is done.
[0029]
After confirming that the hook 4 is fitted and locked to the U-shaped fixing bracket 5a, the operator loosens the locking string 41 and holds the gripping member 72 held in his hand as shown in FIG. By pulling in the direction, the hook 4 is separated from the hook holding member 71, and the attaching operation of the hook 4 to the U-shaped fixing bracket 5a is completed. The locking string 41 passes through the cylindrical body 721 and the through hole 715 as it is, and hangs down in the hoistway.
[0030]
In the above embodiment, the gripping member 72 may be configured such that the gripping bar 723 is directly connected and fixed to the hook holding member 71, and the cylindrical body 721 and the connection 722 may be omitted.
[0031]
As described above, according to the hook attachment device of the present invention, the worker can easily attach the hook to the fixing bracket by remote control from the elevator hall side on the top floor without assembling a special scaffold in the hoistway. Therefore, the elevator installation work can be performed safely and efficiently.
[0032]
【The invention's effect】
According to the hook attachment device of the present invention, the gondola hanging rope can be easily and safely attached to the hoistway ceiling wall in the installation work of the elevator, etc. In this case, a remarkable effect can be obtained.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a hook attaching device according to the present invention.
FIG. 2 is a plan view of the apparatus shown in FIG.
FIG. 3 is a perspective view for explaining a state in which the apparatus shown in FIG. 1 holds a hook.
4 is a perspective view for explaining a state in which the apparatus shown in FIG. 1 locks a hook to a fixing bracket. FIG.
FIG. 5 is a perspective view illustrating a state in which the apparatus shown in FIG. 1 is pulled away from a hook locked to a fixing bracket.
FIG. 6 is a cross-sectional view illustrating a situation in a conventional hoistway in which a hook is locked to a fixing metal fitting.
[Explanation of symbols]
2 Gondola Rope 3 Auxiliary Rope 4 Hook 41 Locking String 42 Movable Locking Piece 5 (Hoistway) Ceiling Wall 5a Fixing Bracket 6 Scaffold 7 Hook Mounting Device 71 Hook Holding Member 714 Non-slip Member (Anti-Slip Part)
715 Through-hole 72 Holding member 723 Holding rod

Claims (3)

A hook holding member having a U-shaped cross section for holding and holding a hook connected to a rope or the like by providing an opening on the upper side;
A hook-shaped holding member provided with one end fixed to the hook holding member and extending downward at the bottom ,
The hook holding device is characterized in that one end of the hook holding member is inserted through a locking string that is locked to the hook, and is hooked along the gripping member .   The hook attaching device according to claim 1, wherein the hook holding member includes a width adjusting mechanism configured to be able to adjust the width of the U-shaped cross section.   The hook attaching device according to claim 1 or 2, wherein the hook holding member has a non-slip portion formed on the inner surface of the U-shaped cross section.

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